CAS: 1873-55-8 Summenformel: C10H9NO Molekulargewicht (g/mol): 159.188 MDL-Nummer: MFCD00082650 InChI-Schlüssel: CBGUMTBCWWMBRV-UHFFFAOYSA-N Synonym: 3-methyl-1-oxidanidyl-quinolin-1-ium, 3-methyl-1-azanaphthalene n-oxide, qnmo01, acmc-1cfdi, 3-methylquinolin-1-ol, 3-methyl-quinoline-1-oxide, 3-methylquinolin-1-ium-1-olate, 3-methylquinoline 1-oxide, 3-methylquinoline-n-oxide, 3-methylquinoline n-oxide PubChem CID: 7021466 IUPAC-Name: 3-Methyl-1-Oxidochinolin-1-ium SMILES: CC1=CC2=CC=CC=C2[N+](=C1)[O-]

CAS: 1906-79-2 Summenformel: C7H10BrN Molekulargewicht (g/mol): 188.068 MDL-Nummer: MFCD00041999 InChI-Schlüssel: ABFDKXBSQCTIKH-UHFFFAOYSA-M Synonym: n-ethyl pyridinium bromide, 1-ethyl-pyridiniubromide, ethylpyridiniumbromide, pyridineethobromide, pyridinium, 1-ethyl-, bromide 1:1, n-ethylpyridinium bromide, pyridinium, 1-ethyl-, bromide, ethylpyridinium bromide, 1-ethylpyridin-1-ium bromide, 1-ethylpyridinium bromide PubChem CID: 15927 IUPAC-Name: 1-Ethylpyridin-1-ium;Bromid SMILES: CC[N+]1=CC=CC=C1.[Br-]

CAS: 1124-64-7 Summenformel: C9H14ClN Molekulargewicht (g/mol): 171.668 MDL-Nummer: MFCD00060047 InChI-Schlüssel: POKOASTYJWUQJG-UHFFFAOYSA-M Synonym: butylpyridine, chloride, butylpyridiniumchloride, unii-f8m63j351a, dsstox_gsid_31462, dsstox_rid_78879, dsstox_cid_11462, butylpyridinium chloride, n-butylpyridinium chloride, 1-butylpyridin-1-ium chloride, 1-butylpyridinium chloride PubChem CID: 2734171 IUPAC-Name: 1-Butylpyridin-1-ium;Chlorid SMILES: CCCC[N+]1=CC=CC=C1.[Cl-]

CAS: 59016-56-7 Summenformel: C8H10BF4N3 Molekulargewicht (g/mol): 234.993 MDL-Nummer: MFCD00011998 InChI-Schlüssel: MBLVMDCQDCVKNE-UHFFFAOYSA-N Synonym: n-cyano-4-dimethylamino-pyridinium tetrafluoroborate, 1-cyano-4-dimethylaminopyridinium tetra-fluoroborate, n-cyano-4-dimethylaminopyridinium tetrafluoroborate, acmc-209m9a, pubchem17735, 1-cyano-4-dimethylamino-pyridinium tetrafluoroborate, unii-p4w72066jt, 1-cyano-4-dimethylamino pyridin-1-ium tetrafluoroborate, 1-cyano-4-dimethylamino pyridinium tetrafluoroborate, cdap PubChem CID: 9881151 IUPAC-Name: 4-(Dimethylamino)Pyridin-1-ium-1-Carbonitril;Tetrafluorborat SMILES: [B-](F)(F)(F)F.CN(C)C1=CC=[N+](C=C1)C#N

CAS: 212333-72-7 Summenformel: C₁₀H₁₆N₃OS·F₆P Molekulargewicht (g/mol): 371.29 InChI-Schlüssel: UCOGEMMJHLHOAW-UHFFFAOYSA-N Synonym: n,n,n,n-tetramethyl-s-1-oxido-2-pyridyl thiouronium hexafluorophosphate, n,n,n',n'-tetramethyl-s-1-oxido-2-pyridyl thiuronhexafluorophosphate, n,n,n',n'-tetramethyl-s-1-oxido-2-pyridyl thiuron, ksc911c8f, acmc-209fij, ambotzrl-1156, hott n,n,n',n'-tetramethyl-s-1-oxido-2-pyridyl thiuronium hexafluorophosphate, n,n,n',n'-tetramethyl-s-1-oxido-2-pyridyl thiouronium hexafluorophosphate, n,n,n',n'-tetramethyl-s-1-oxido-2-pyridyl thiuronium hexafluorophosphate, hott PubChem CID: 10571248 IUPAC-Name: [Dimethylamino-(1-Oxidopyridin-1-ium-2-yl)Sulfanylmethyliden]-Dimethylazanium;Hexafluorphosphat SMILES: CN(C)C(=[N+](C)C)SC1=CC=CC=[N+]1[O-].F[P-](F)(F)(F)(F)F

CAS: 1074-98-2 Summenformel: C6H6N2O3 Molekulargewicht (g/mol): 154.125 MDL-Nummer: MFCD00014626 InChI-Schlüssel: SSOURMYKACOBIV-UHFFFAOYSA-N Synonym: pyridine, 3-methyl-4-nitro-, 1-oxide, 4-nitro-3-picoline-n-oxide, 4-nitro-3-picoline 1-oxide, 3-methyl-4-nitro-pyridine 1-oxide, 3-methyl-4-nitropyridine-1-oxide, 3-methyl-4-nitropyridin-1-ium-1-olate, 3-methyl-4-nitropyridine-n-oxide, 4-nitro-3-picoline n-oxide, 3-methyl-4-nitropyridine 1-oxide, 3-methyl-4-nitropyridine n-oxide PubChem CID: 70633 IUPAC-Name: 3-Methyl-4-nitro-1-oxidopyridin-1-ium SMILES: CC1=C(C=C[N+](=C1)[O-])[N+](=O)[O-]

CAS: 352530-29-1 Summenformel: C7H6ClN Molekulargewicht (g/mol): 139.582 MDL-Nummer: MFCD03093912 InChI-Schlüssel: KFBZWZGIZHLUBX-UHFFFAOYSA-N Synonym: 4-ethynylpyridine hydrochloride 1:1, 4-ethynyl-pyridine hydrochloride, 4-ethynyl pyridine hydrochloride, 4-pyridylacetylene hydrochloride, pubchem19527, 4-ethynylpyridinehydrochloride, 4-ethynylpyridinehychloride salt, pyridine, 4-ethynyl-, hydrochloride, 4-ethynylpyridine hcl, 4-ethynylpyridine hydrochloride PubChem CID: 16216931 IUPAC-Name: 4-Ethinylpyridin;Hydrochlorid SMILES: C#CC1=CC=NC=C1.Cl

CAS: 56-57-5 Summenformel: C9H6N2O3 Molekulargewicht (g/mol): 190.16 MDL-Nummer: MFCD00006738 InChI-Schlüssel: YHQDZJICGQWFHK-UHFFFAOYSA-N Synonym: 4-nitroquinolin-1-oxide, 4 nqo, 4-nitroquinoline oxide, quinoline, 4-nitro-, 1-oxide, 4-nqo, 4-nitroquinoline-n-oxide, nitrochin, 4-nitroquinoline-1-oxide, 4-nitroquinoline 1-oxide, 4-nitroquinoline n-oxide PubChem CID: 5955 ChEBI: CHEBI:16907 IUPAC-Name: 4-nitroquinolin-1-ium-1-olate SMILES: [O-][N+](=O)C1=C2C=CC=CC2=[N+]([O-])C=C1

CAS: 694-59-7 Summenformel: C₅H₅NO Molekulargewicht (g/mol): 95.1 MDL-Nummer: MFCD00006194 InChI-Schlüssel: ILVXOBCQQYKLDS-UHFFFAOYSA-N Synonym: pyridine-oxide, pyridin-1-ium-1-olate, py n-oxide, unii-91f12jjj4h, pyridine-1-oxide, pyridine, 1-oxide, pyridine oxide, pyridine n-oxide, pyridine 1-oxide, pyridine-n-oxide PubChem CID: 12753 ChEBI: CHEBI:29136 IUPAC-Name: 1-Pyridin-1-oxid SMILES: C1=CC=[N+](C=C1)[O-]

CAS: 1532-72-5 Summenformel: C9H7NO Molekulargewicht (g/mol): 145.161 MDL-Nummer: MFCD00006903 InChI-Schlüssel: RZIAABRFQASVSW-UHFFFAOYSA-N Synonym: 2-oxido-isoquinolin-2-ium, acmc-1boxv, isoquinolinen-oxide, isoquinolin-2-ium-2-olate, isoquinolin-n-oxide, isoquinoline, 2-oxide, isoquinoline oxide, isoquinoline-n-oxide, isoquinoline 2-oxide, isoquinoline n-oxide PubChem CID: 290378 IUPAC-Name: 2-Oxidoisochinolin-2-ium SMILES: C1=CC=C2C=[N+](C=CC2=C1)[O-]

CAS: 6295-87-0 Summenformel: C5H7IN2 Molekulargewicht (g/mol): 222.03 MDL-Nummer: MFCD00051893 InChI-Schlüssel: NDRLPYIMWROJBG-UHFFFAOYSA-M Synonym: acmc-209nay, l-aminopyridinium iodide, amino-pyridinium iodide, aminopyridinium iodide, pyridylamine, iodide, 1-aminopyridiniumiodide, pyridinium, 1-amino-, iodide, n-aminopyridinium iodide, 1-aminopyridin-1-ium iodide, 1-aminopyridinium iodide PubChem CID: 2733704 IUPAC-Name: Pyridin-1-ium-1-Amin;Iod SMILES: [I-].N[N+]1=CC=CC=C1

CAS: 1678-49-5 Summenformel: C5H3BrN2O3 Molekulargewicht (g/mol): 218.994 MDL-Nummer: MFCD00085925 InChI-Schlüssel: YZQMKADIENBVLH-UHFFFAOYSA-N Synonym: 3-bromo-4-nitropyridin-n-oxide, 3-bromo-4-nitropyridine oxide, acmc-1bxbw, 3-bromo-4-nitropyridin-1-ol, 3-bromo-4-nitro-1-oxido-pyridin-1-ium, 3-bromo-4-nitropyridine-n-oxide, pyridine, 3-bromo-4-nitro-, 1-oxide, 3-bromo-4-nitropyridin-1-ium-1-olate, 3-bromo-4-nitropyridine 1-oxide, 3-bromo-4-nitropyridine n-oxide PubChem CID: 548521 IUPAC-Name: 3-Brom-4-Nitro-1-Oxidopyridin-1-ium SMILES: C1=C[N+](=CC(=C1[N+](=O)[O-])Br)[O-]

CAS: 58086-67-2 Summenformel: C13H14FNO3S Molekulargewicht (g/mol): 283.317 MDL-Nummer: MFCD00011983 InChI-Schlüssel: HQWDKLAIDBOLFE-UHFFFAOYSA-M Synonym: 2-fluoro-1-methyl-pyridin-1-ium; 4-methylbenzenesulfonate, 2-fluoro-n-methylpyridiniumtoluene-4-sulphonate, 2-fluoro-1-methylpyridin-1-ium tosylate, 2-fluoro-n-methylpyridinium toluene-4-sulfonate, 2-fluoro-1-methylpyridinium p-toluenesulphonate, 2-fluoro-1-methylpyridinium 4-toluenesulfonate, mukaiyama's reagent, 2-fluoro-1-methylpyridinium, 2-fluoro-1-methylpyridin-1-ium 4-methylbenzenesulfonate, 2-fluoro-1-methylpyridinium p-toluenesulfonate PubChem CID: 171631 IUPAC-Name: 2-Fluor-1-Methylpyridin-1-ium;4-Methylbenzolsulfonat SMILES: CC1=CC=C(C=C1)S(=O)(=O)[O-].C[N+]1=CC=CC=C1F

CAS: 198878-42-1 Summenformel: C₉H₇NO·xH₂O Molekulargewicht (g/mol): 145.16 MDL-Nummer: MFCD00149472 InChI-Schlüssel: CUSWDTBBCIXCRB-UHFFFAOYSA-N Synonym: ccris 4333, quinoline-n-oxide hydrate, quinolinyl-n-oxide, quinolin-1-ium-1-olate, quinoline-1-oxide, quinoline, 1-oxide, quinoline oxide, quinoline n-oxide, quinoline-n-oxide, quinoline 1-oxide PubChem CID: 15366 SMILES: O.[O-][N+]1=CC=CC2=CC=CC=C12

CAS: 628-13-7 Summenformel: C5H6ClN Molekulargewicht (g/mol): 115.56 MDL-Nummer: MFCD00012802 InChI-Schlüssel: AOJFQRQNPXYVLM-UHFFFAOYSA-N Synonym: pyrdine hydrochloride, pyridine hcl salt, pyridiniumchloride, pyridine.hcl, pyridine-hcl, pyridine, hydrochloride 1:1, pyridine hcl, pyridinehydrochloride, pyridine, hydrochloride, pyridine hydrochloride PubChem CID: 10176127 IUPAC-Name: Pyridin;Hydrochlorid SMILES: C1=CC=NC=C1.Cl

CAS: 6004-24-6 Summenformel: C21H40ClNO Molekulargewicht (g/mol): 358.01 MDL-Nummer: MFCD00149977 InChI-Schlüssel: NFCRBQADEGXVDL-UHFFFAOYSA-M Synonym: sprol tn, cetylpyridinii chloridum, d9om4sk49p, pyridinium, 1-hexadecyl-, chloride, monohydrate, unii-d9om4sk49p, hexadecylpyridinium chloride monohydrate, 1-hexadecylpyridinium chloride monohydrate, 1-hexadecylpyridin-1-ium chloride hydrate, cetylpyridinium chloride monohydrate PubChem CID: 22324 ChEBI: CHEBI:3566 IUPAC-Name: 1-Hexadecylpyridin-1-ium;Chlorid;Hydrat SMILES: O.[Cl-].CCCCCCCCCCCCCCCCN1C=C[CH+]C=C1

CAS: 207234-02-4 Summenformel: C17H32ClNO Molekulargewicht (g/mol): 301.899 MDL-Nummer: MFCD00150002 InChI-Schlüssel: BDGGUWSWAKGEGH-UHFFFAOYSA-M Synonym: 1-dodecylpyridin-1-ium chloride-water 1/1/1, n-dodecylpyridinium chloride monohydrate, dodecylpyridinium chloride monohydrate, n-dodecylpyridinium chloride hydrate, c17h30n.cl.h2o, 1-dodecylpyridin-1-ium hydrate chloride, 1-dodecylpyridinium chloride hydrate, laurylpyridinum chloride, 1-dodecylpyridin-1-ium chloride hydrate PubChem CID: 16211802 IUPAC-Name: 1-Dodecylpyridin-1-ium;Chlorid;Hydrat SMILES: CCCCCCCCCCCC[N+]1=CC=CC=C1.O.[Cl-]

CAS: 64201-64-5 Summenformel: C9H9NO2 Molekulargewicht (g/mol): 163.176 MDL-Nummer: MFCD00149472 InChI-Schlüssel: CUSWDTBBCIXCRB-UHFFFAOYSA-N Synonym: quinoline n-oxide monohydrate, quinoline 1-oxide monohydrate, acmc-1be96, quinolinol, oxamethane, quinoline-1-oxide hydrate, quinoline-n-oxide hydrate, 1-oxidoquinolin-1-ium hydrate, quinoline, 1-oxide, monohydrate, quinoline n-oxide hydrate PubChem CID: 152363 IUPAC-Name: 1-Oxidochinolin-1-ium;Hydrat SMILES: C1=CC=C2C(=C1)C=CC=[N+]2[O-].O

CAS: 874-80-6 Summenformel: C9H14BrN Molekulargewicht (g/mol): 216.12 MDL-Nummer: MFCD00671496 InChI-Schlüssel: KVBQNFMTEUEOCD-UHFFFAOYSA-M Synonym: acmc-209qnu, 1-butylpyridiniumbromide, pyridinium, 1-butyl-, bromide, 1-n-butylpyridinium bromide, f72fd1bswg, unii-f72fd1bswg, n-butylpyridinium bromide, 1-butylpyridin-1-ium bromide, butylpyridinium bromide, 1-butylpyridinium bromide PubChem CID: 2734238 IUPAC-Name: 1-Butylpyridin-1-ium;Bromid SMILES: [Br-].CCCC[N+]1=CC=CC=C1

CAS: 136997-71-2 Summenformel: C10H14N2O4S Molekulargewicht (g/mol): 258.29 MDL-Nummer: MFCD00185917 InChI-Schlüssel: SJHHXGGXZKPIDE-UHFFFAOYSA-N Synonym: 2-1-dimethylcarbamoyl-4-pyridinio ethylsulfonate, 1-dimethylcarbamoyl-4-2-sulfonatoethyl pyridinium, 1-dimethylcarbamoyl-4-2-sulfoethyl pyridinium betaine, 2-1-n,n-dimethylcarbamoyl-4-pyridyl ethanesulfonic acid, 1-dimethylcarbamoyl-4-2-sulfonatoethyl pyridin-1-ium, 1-dimethylcarbamoyl-4-2-sulfoethyl pyridinium hydroxide inner salt, 2-1-dimethylcarbamoyl pyridin-1-ium-4-yl ethanesulfonate, 1-dimethylcarbamoyl-4-2-sulfoethyl pyridinium inner salt, 1-n,n-dimethylcarbamoyl-4-2-sulfoethyl pyridinium hydroxide inner salt PubChem CID: 3853422 SMILES: CN(C)C(=O)[N+]1=CC=C(CCS([O-])(=O)=O)C=C1

CAS: 1124-33-0 Summenformel: C5H4N2O3 Molekulargewicht (g/mol): 140.10 MDL-Nummer: MFCD00006206 InChI-Schlüssel: RXKNNAKAVAHBNK-UHFFFAOYSA-N Synonym: 4-nitro-1-oxido-pyridin-1-ium, 4-nitro-n-oxopyridine, 4-nitropyridine oxide, p-nitropyridine n-oxide, 4-nitropyridin-1-ium-1-olate, pyridine, 4-nitro-, 1-oxide, 4-nitropyridine-1-oxide, 4-nitropyridine-n-oxide, 4-nitropyridine 1-oxide, 4-nitropyridine n-oxide PubChem CID: 14300 SMILES: [O-][N+](=O)C1=CC=[N+]([O-])C=C1

CAS: 207511-13-5 Summenformel: C₅H₄NNaOS·xH₂O Molekulargewicht (g/mol): 149.15 MDL-Nummer: MFCD00151244 InChI-Schlüssel: HTJXGDXCIFMYMU-UHFFFAOYSA-M Synonym: sodium 2-mercaptopyridine n-oxide hydrate PubChem CID: 43835086 IUPAC-Name: Natrium;1-Oxidopyridin-1-ium-2-Thiolat;Hydrat SMILES: C1=CC=[N+](C(=C1)[S-])[O-].O.[Na+]

CAS: 1532-72-5 Summenformel: C9H7NO Molekulargewicht (g/mol): 145.161 MDL-Nummer: MFCD00006903 InChI-Schlüssel: RZIAABRFQASVSW-UHFFFAOYSA-N Synonym: 2-oxido-isoquinolin-2-ium, acmc-1boxv, isoquinolinen-oxide, isoquinolin-2-ium-2-olate, isoquinolin-n-oxide, isoquinoline, 2-oxide, isoquinoline oxide, isoquinoline-n-oxide, isoquinoline 2-oxide, isoquinoline n-oxide PubChem CID: 290378 IUPAC-Name: 2-Oxidoisochinolin-2-ium SMILES: C1=CC=C2C=[N+](C=CC2=C1)[O-]

CAS: 694-59-7 Summenformel: C5H5NO Molekulargewicht (g/mol): 95.101 MDL-Nummer: MFCD00006194 InChI-Schlüssel: ILVXOBCQQYKLDS-UHFFFAOYSA-N Synonym: pyridine-oxide, pyridin-1-ium-1-olate, py n-oxide, unii-91f12jjj4h, pyridine-1-oxide, pyridine, 1-oxide, pyridine oxide, pyridine n-oxide, pyridine 1-oxide, pyridine-n-oxide PubChem CID: 12753 ChEBI: CHEBI:29136 IUPAC-Name: 1-Pyridin-1-oxid SMILES: C1=CC=[N+](C=C1)[O-]

CAS: 37699-43-7 Summenformel: C7H8N2O3 Molekulargewicht (g/mol): 168.15 MDL-Nummer: MFCD00065172 InChI-Schlüssel: CFMTVTYBZMKULI-UHFFFAOYSA-N Synonym: 2,3-dimethyl-4-nitro-1-oxido-pyridin-1-ium, 2,3-dimethyl-4-nitro-pyridine 1-oxide, 4-nitro-2,3-dimethylpyridine n-oxide, 4-nitro-2,3-lutidine n-oxide, 2,3-dimethyl-4-nitropyridin-1-ium-1-olate, pyridine, 2,3-dimethyl-4-nitro-, 1-oxide, 4-nitro-2,3-lutidine-n-oxide, 2,3-dimethyl-4-nitropyridine n-oxide, 2,3-dimethyl-4-nitropyridine 1-oxide, 2,3-dimethyl-4-nitropyridine-n-oxide PubChem CID: 148223 SMILES: CC1=C(C)[N+]([O-])=CC=C1[N+]([O-])=O

CAS: 37699-43-7 Summenformel: C7H8N2O3 Molekulargewicht (g/mol): 168.15 MDL-Nummer: MFCD00065172 InChI-Schlüssel: CFMTVTYBZMKULI-UHFFFAOYSA-N Synonym: 2,3-dimethyl-4-nitro-1-oxido-pyridin-1-ium, 2,3-dimethyl-4-nitro-pyridine 1-oxide, 4-nitro-2,3-dimethylpyridine n-oxide, 4-nitro-2,3-lutidine n-oxide, 2,3-dimethyl-4-nitropyridin-1-ium-1-olate, pyridine, 2,3-dimethyl-4-nitro-, 1-oxide, 4-nitro-2,3-lutidine-n-oxide, 2,3-dimethyl-4-nitropyridine n-oxide, 2,3-dimethyl-4-nitropyridine 1-oxide, 2,3-dimethyl-4-nitropyridine-n-oxide PubChem CID: 148223 IUPAC-Name: 2,3-dimethyl-4-nitropyridin-1-ium-1-olate SMILES: CC1=C(C)[N+]([O-])=CC=C1[N+]([O-])=O

CAS: 15471-17-7 Summenformel: C8H11NO3S Molekulargewicht (g/mol): 201.24 MDL-Nummer: MFCD00064468 InChI-Schlüssel: REEBJQTUIJTGAL-UHFFFAOYSA-N Synonym: 1-3-sulfonatopropyl pyridin-1-ium, pyridinium, 1-3-sulfopropyl-, inner salt, 1-3-sulfopropyl pyridinium hydroxide, inner salt, qn4i6ai9ek, 1-pyridiniumpropane-3-sulfonate, 3-1-pyridinio-1-propanesulfonate, unii-qn4i6ai9ek, 1-3-sulphonatopropyl pyridinium, ndsb-201, 3-pyridin-1-ium-1-yl propane-1-sulfonate PubChem CID: 84929 IUPAC-Name: 3-Pyridin-1-ium-1-ylpropan-1-Sulfonat SMILES: [O-]S(=O)(=O)CCC[N+]1=CC=CC=C1

CAS: 212333-72-7 Summenformel: C10H16F6N3OPS Molekulargewicht (g/mol): 371.282 MDL-Nummer: MFCD05865266 InChI-Schlüssel: UCOGEMMJHLHOAW-UHFFFAOYSA-N Synonym: n,n,n,n-tetramethyl-s-1-oxido-2-pyridyl thiouronium hexafluorophosphate, n,n,n',n'-tetramethyl-s-1-oxido-2-pyridyl thiuronhexafluorophosphate, n,n,n',n'-tetramethyl-s-1-oxido-2-pyridyl thiuron, ksc911c8f, acmc-209fij, ambotzrl-1156, hott n,n,n',n'-tetramethyl-s-1-oxido-2-pyridyl thiuronium hexafluorophosphate, n,n,n',n'-tetramethyl-s-1-oxido-2-pyridyl thiouronium hexafluorophosphate, n,n,n',n'-tetramethyl-s-1-oxido-2-pyridyl thiuronium hexafluorophosphate, hott PubChem CID: 10571248 IUPAC-Name: [Dimethylamino-(1-Oxidopyridin-1-ium-2-yl)Sulfanylmethyliden]-Dimethylazanium;Hexafluorphosphat SMILES: CN(C)C(=[N+](C)C)SC1=CC=CC=[N+]1[O-].F[P-](F)(F)(F)(F)F

CAS: 1124-33-0 Summenformel: C5H4N2O3 Molekulargewicht (g/mol): 140.10 MDL-Nummer: MFCD00006206 InChI-Schlüssel: RXKNNAKAVAHBNK-UHFFFAOYSA-N Synonym: 4-nitro-1-oxido-pyridin-1-ium, 4-nitro-n-oxopyridine, 4-nitropyridine oxide, p-nitropyridine n-oxide, 4-nitropyridin-1-ium-1-olate, pyridine, 4-nitro-, 1-oxide, 4-nitropyridine-1-oxide, 4-nitropyridine-n-oxide, 4-nitropyridine 1-oxide, 4-nitropyridine n-oxide PubChem CID: 14300 SMILES: [O-][N+](=O)C1=CC=[N+]([O-])C=C1